// Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
//
// Licensed under the BSD 3-Clause License (the "License"); you may not use this
// file except in compliance with the License. You may obtain a copy of the
// License at
//
// https://opensource.org/licenses/BSD-3-Clause
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.

#include "flare/base/down_cast.h"

#include "gtest/gtest.h"

namespace flare {

struct A {
  virtual ~A() = default;
};

struct B : A {};

TEST(Cast, All) {
  B b;
  A* ptr = &b;
  ASSERT_NE(nullptr, down_cast<B>(ptr));
  ASSERT_NE(nullptr, down_cast<B>(const_cast<const A*>(ptr)));
}

#ifndef NDEBUG

TEST(CastDeathTest, InvalidCast) {
  A a;
  A* ptr = &a;
  ASSERT_DEATH(down_cast<B>(ptr), "");
}

#endif

}  // namespace flare
